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DE60121632D1 - Verfahren und vorrichtung für echounterdrüchung - Google Patents

Verfahren und vorrichtung für echounterdrüchung

Info

Publication number
DE60121632D1
DE60121632D1 DE60121632T DE60121632T DE60121632D1 DE 60121632 D1 DE60121632 D1 DE 60121632D1 DE 60121632 T DE60121632 T DE 60121632T DE 60121632 T DE60121632 T DE 60121632T DE 60121632 D1 DE60121632 D1 DE 60121632D1
Authority
DE
Germany
Prior art keywords
echountry
dusk
echountry dusk
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE60121632T
Other languages
English (en)
Inventor
Wen Shun Tian
Mario Alvarez-Tinoco
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STMicroelectronics Asia Pacific Pte Ltd
Original Assignee
STMicroelectronics Asia Pacific Pte Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by STMicroelectronics Asia Pacific Pte Ltd filed Critical STMicroelectronics Asia Pacific Pte Ltd
Application granted granted Critical
Publication of DE60121632D1 publication Critical patent/DE60121632D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)
DE60121632T 2001-05-17 2001-05-17 Verfahren und vorrichtung für echounterdrüchung Expired - Lifetime DE60121632D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SG2001/000093 WO2002093774A1 (en) 2001-05-17 2001-05-17 Echo canceller and a method of cancelling echo

Publications (1)

Publication Number Publication Date
DE60121632D1 true DE60121632D1 (de) 2006-08-31

Family

ID=20428936

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60121632T Expired - Lifetime DE60121632D1 (de) 2001-05-17 2001-05-17 Verfahren und vorrichtung für echounterdrüchung

Country Status (4)

Country Link
US (1) US20040252826A1 (de)
EP (1) EP1393461B1 (de)
DE (1) DE60121632D1 (de)
WO (1) WO2002093774A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6947550B2 (en) * 2002-04-30 2005-09-20 Innomedia Pte Ltd. Acoustic echo cancellation
DE10342307B4 (de) * 2003-09-12 2005-08-04 Siemens Ag Verfahren zur Entstörung übermittelter Audiosignale zwischen Telekommunikationsendgeräten
ATE396582T1 (de) * 2005-01-11 2008-06-15 Harman Becker Automotive Sys Verringerung der rückkopplung von kommunikationssystemen
US7881460B2 (en) * 2005-11-17 2011-02-01 Microsoft Corporation Configuration of echo cancellation
US20070112563A1 (en) * 2005-11-17 2007-05-17 Microsoft Corporation Determination of audio device quality
WO2009028023A1 (ja) * 2007-08-24 2009-03-05 Fujitsu Limited エコー抑制装置、エコー抑制システム、エコー抑制方法及びコンピュータプログラム
US8594173B2 (en) * 2008-08-25 2013-11-26 Dolby Laboratories Licensing Corporation Method for determining updated filter coefficients of an adaptive filter adapted by an LMS algorithm with pre-whitening
US8737636B2 (en) * 2009-07-10 2014-05-27 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for adaptive active noise cancellation
GB2509493A (en) 2012-12-21 2014-07-09 Microsoft Corp Suppressing Echo in a received audio signal by estimating the echo power in the received audio signal based on an FIR filter estimate
GB2510331A (en) 2012-12-21 2014-08-06 Microsoft Corp Echo suppression in an audio signal
GB2512022A (en) * 2012-12-21 2014-09-24 Microsoft Corp Echo suppression
CN105491256B (zh) * 2015-12-09 2018-12-04 天津大学 一种声学回声消除器启动阶段稳健的步长调整方法
CN105391879B (zh) * 2015-12-09 2018-06-12 天津大学 一种无回声残留双端通话鲁棒的声学回声消除方法
US11539833B1 (en) * 2020-01-10 2022-12-27 Amazon Technologies, Inc. Robust step-size control for multi-channel acoustic echo canceller
CN115457970B (zh) * 2022-09-06 2023-04-21 安徽大学 一种自动驾驶车内回声消除方法和系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2281680B (en) * 1993-08-27 1998-08-26 Motorola Inc A voice activity detector for an echo suppressor and an echo suppressor
FR2729024A1 (fr) * 1994-12-30 1996-07-05 Matra Communication Annuleur d'echo acoustique avec filtrage en sous-bandes
JPH08251082A (ja) * 1995-03-13 1996-09-27 Sony Corp エコー除去装置
WO2000072566A1 (en) * 1999-05-20 2000-11-30 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatus for improving adaptive filter performance by signal equalization

Also Published As

Publication number Publication date
US20040252826A1 (en) 2004-12-16
EP1393461B1 (de) 2006-07-19
EP1393461A1 (de) 2004-03-03
WO2002093774A1 (en) 2002-11-21

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Legal Events

Date Code Title Description
8332 No legal effect for de